<template>
    <div class="app-container">
        <!-- header 头部区域部分 -->
       <mt-header fixed title="商城APP">
		   <span  slot="left" @click="goBack" v-show="flag">
				<mt-button icon="back">返回</mt-button>
			</span>
	   </mt-header>

        <!-- router-view 主体区域部分 -->
		<transition >
				<router-view></router-view>
		</transition>

        <!-- bottom 底部区域部分 -->
        <nav class="mui-bar mui-bar-tab">
			<router-link class="mui-tab-item-s " to="/home">
				<span class="mui-icon mui-icon-home"></span>
				<span class="mui-tab-label">首页</span>
			</router-link>
			<router-link class="mui-tab-item-s" to="/member">
				<span class="mui-icon mui-icon-contact"></span>
				<span class="mui-tab-label">会员</span>
			</router-link>
			<router-link class="mui-tab-item-s" to="/shopcar">
				<span class="mui-icon mui-icon-extra mui-icon-extra-cart"><span class="mui-badge" id="badge">{{ $store.getters.getAllCount }}</span></span>
				<span class="mui-tab-label" >购物车</span>
			</router-link>
			<router-link class="mui-tab-item-s" to="/search">
				<span class="mui-icon mui-icon-search"></span>
				<span class="mui-tab-label">搜索</span>
			</router-link>
		</nav>

    </div>
    
</template>
<script>
   export default{
	   data(){
		   return{
			   flag: false
		   }
	   },
	   created(){
		   this.flag= this.$route.path === '/home'? false: true
	   },
	   methods: {
		 goBack(){
			 //点击后退
			 this.$router.go(-1)
		 }
	   },
	   watch:{//监听是否为主页路径，如果为主页，则隐藏返回按钮
		'$route.path': function(newVal){
			if(newVal === "/home"){
				this.flag =false
			}else{
				this.flag= true
			}
		}
	   }
   }
</script>
<style lang="less" scoped>
.app-container{
	padding-top: 40px;
	overflow-x: hidden;
	padding-bottom: 50px;
}

//动画
.v-enter{
	opacity: 0;
	transform: translateX(100%);
}
.v-leave-to{
	opacity: 0;
	transform: translateX-(100%);
	 position: absolute;
}

.v-enter-active,.v-leave-active{
	transition: all .3s ease;
}

//解决tabbar切换问题
.mui-bar-tab .mui-tab-item-s {
    display: table-cell;
    overflow: hidden;
    width: 1%;
    height: 50px;
    text-align: center;
    vertical-align: middle;
    white-space: nowrap;
    text-overflow: ellipsis;
    color: #929292;
}
.mui-bar-tab .mui-tab-item-s .mui-icon {
    top: 3px;
    width: 24px;
    height: 24px;
    padding-top: 0;
    padding-bottom: 0;
}
.mui-bar-tab .mui-tab-item-s .mui-icon ~ .mui-tab-label {
    font-size: 11px;
    display: block;
    overflow: hidden;
	text-overflow: ellipsis;
}
.mint-header.is-fixed {
	z-index: 999;
}
.mui-active{
	color: #007aff !important;
}
</style>



